OpenGL is the industry's most widely used, supported and best documented 2D/3D graphics API making it inexpensive & easy to obtain information on implementing OpenGL in hardware and software. There are numerous books, tutorials, online coding examples, coding seminars, and classes that document the API, Extensions, Utility Libraries, and Platform Specific Implementations.
Colmek uses OpenGLas its premier resource when it comes to developing high performance graphics solutions.